Current-collector



I. D. SHIPPER.

CURRENT COLLECTOR.

APPLICATION FILED SEPT. I2. I.92I..

Patented Nov. 29, 1921.

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CURRENT COLLECTOR.

APPLICATION FILED SEPT. I2, 192|.

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I l Ji UNITED STATES PATENT OFFICE.

ISAAC D. SHIPPER, 0F PHILADELPHIA, PENNSYLVANIA, ASSIGNPR TO THE J. G. BRILL COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

CURRENT-COLLECTOR.

Application led September 12, 1921.

T o all whom t may concern.'

-a trolley head, or collector, for a two-wire overhead system which can be used in connection with cars that travel over streets without rails.

A further object of the invention is to make the collector so liexible that the car can swing from under the wires without disengaging the wires.

A still further object of the invention is to provide means whereby the collector can be operated from the ground to adjust it t0 the wires.

Still another object of the invention is to provide mea-ns whereby an additional collector can be used when the car is running on tracks under a single overhead wire.

In the accompanying drawings:

Figure 1 is a rear view of my improved overhead collector for trolley cars;

Fig. 2 is a sectional View on the line 2 2, Fig. 1;

Fig. 3 is a sectional plan view on the line 3 3, Fig. 2;

Fig. 4 is a front view illustrating a modification of the invention;

Fig. 5 is a plan view of the construction shown in Fig. 4;

Fig. 6 is a sectional view on the line 6 6, Fig. 4; and Y Fig. 7 is a. sectional view on the line 7 7, Fig. 4.

This invention is especially adapted for use in connection with cars known as trackless trolley cars in which two overhead wires are used, one being the feed wire and the other being the ground wire. By my invention, the collector will remain in contact with the two wires when the pole carrying the collector is at different angles in respect to the wires.

Referring to the drawings, 1 is the pole, which is mounted in the ordinary manner on the top of a car to which is secured a head 2. This head has at depending portion 3 extending between two jaws 4 on the pole. A bolt 5 clamps the jaws to the portion 3 so as to hold the head in a fixed position. The head is adjusted to the midposition be- Specication of Letters Patent.

Patented Nov. 29, 1921.

Serial No. 499,928.

tween the highest and the lowest wires of the line. Projecting from the head is a stud (3 on which is mounted a swivel member T. 8 is a ball bearing between the lower portion of the swivel member and the base of thc stud. The stud is grooved to receive a pin 9, which holds the swivel member in position on the stud. Mounted on the swivel member is a cap plate 10 having a flange secured by bolts 11 to a flange 12 of the swivel member. This cap plate is grooved on its under side to receive the spring 13. which is clamped between the cap plate and the swivel member. The capplate is connected by a longitudinal pivot pin 14 with a plate 15 to which the carrier 16 is secured. T his ,carrier extends the full width of the collector and is preferably made of insulating material. By pivoting the carrier to the swivel member by the pin 14, the carrier can rock on the pivot so that it will accommodate itself to the wires.

The spring 13 is a comparatively light spring and it bears against the outer ends of the carrier 16, tending to hold the carrier in the midposition. ()n the carrier 16 are blocks 17, 18 and 19, also preferably made of non-conducting material. Between the blocks 17 and 18 is the conducting tubular bar 20, the ends of which rest in the recesses in the blocks 17 and 18. Above the bar 2O is a guide rod 21. the ends of which also rest in recesses in said blocks.

22 is a shoe shaped as clearli1 shown'in Figs. 1 and 2. This shoe is loosely mounted on the bar 20, being held in position between the block 17 and a sleeve 23 secured to the bar. The rod 21 passes through a slot 24 in the shoe so that the shoe is allowed a certain amount of rocking motion on the bar in order to accommodate itself to the wire. The shoe is made with flanges 25 at the sides and the recess is slightly curved, as shown and has a central depression 26 to accommodate the wire, the flanges being spaced far enough apart to allow the wire to work freely in the shoe when the collector is at an angle to the wire. Secured to the bar 20 is a sleeve 27 to which is attached a feed wire 28 leading to the motor on the car. Mounted between the sleeve 27 and the block 18 is a shoe 29 constructed in the same manner as the shoe 22. This central shoe is only used with a single feed wire when the cars mounted on rails, such, for instance, as

when the car is being transferred over a track trolley system to a car barn.

Mounted between the block 18 and the block 19 is a bar 30 similar to the bar'20. Above the bar 30 is a guide rod 31. 32 1s a shoe mounted on the bar and held by a sleeve 33 secured to the bar. The rod 21 passes through a slot in the shoe similar 4to the slot 24 in the shoe 29. The shoe 32 is constructed in the same manner as the shoe 22. The shoe 32 rests against the other wlre of the two wire system.

In order to manipulate the collector from the ground. a lug 34l is formed atl the rear ot' the swivel member 7 and a rope 34 1s secured to this lug. One/end ofthe rope passes through an eye 35 in a projection at one side of the head 2. The other end of the rope passes through an eye 36 at the opposlte side of the head 2. The ends of the rope are attached to the ordinary spring-controlled fastenings at the rear of the car so that when it is desired to remove the collector from the wires all that is necessary is pull down on the two ropes. When 1t 1s desired to adjust the collector to .the wires by handling the two ropes, the swivel member can be turned to any position desired, or the pole can be shifted so as to bring the shoes in Contact with the wires.

Referring to Figs. 4 to 7, both inclusive, a modification is illustrated in ,which the shoes 22a and 32a are mounted on short bars 2Oa and 30a respectively. These bars are allowed a certain amount of movement by means of short rods 21a and 31a. These rods and bars are mounted in bearings 17l and 19El respectively, the bearings being secured to a carrier plate 16a by bolts, as shown, and

an underlapping lip 1 on the bearing 17'* extends under the carrier plate and a similar lip 19b extends from the bearing 19'* under the carrier plate 16a. The central shoe 29al is mounted on a separate bar 40, which is carried by a bearing 42. A rod 41, also mounted in the bearing, limits the movement of the shoe 29a in the same manner as the shoe 29, Fig. 1. The bearing 42A is mounted on a tapered, undercut post 43 which is adapted to tapered 'ways in a plate 44 secured to the carrier 168L and a pivot plate 15a. In the present instance, mounted on a pivot pin 45 at the front of the plate of the bearing is a hasp 46, which extends over the pivot pin 14a and also extends into a notch 47 in the cap plate 10a and the plate 12EL of the swivel member 7B. This hasp is held in place by a cotter in, or other fastening 49. On withdrawing t e cotter pin, and raising the hasp the center bearing and its shoe can be readily removed from the carrier when it is desired to use only the two shoes 22 and 32a. The bearing 17a is connected to a terminal block 50 by a conducting plate 51 and the bearing 19a is connected to a terminal block 52 by a conducting plate 53. Vlie plate 44 for the central shoe is also connected to the plate 53.

I claim:

1. The combination in a current collector for trolley cars, of a pole;'a head thereon having a` vertical stud; a swivel member pivotally mounted on the stud; a carrier ivoted to the swivel member by a longitudinal pivot; a spring tending to hold the said carrier in a horizontal position; and shoes on the carrier, one shoe being insulated from the other.

2. The combination in a current collector y for trolley cars, of a pole; a head thereon having a vertical pivot; a swivel member mounted on the pivot; a carrier pivoted to the swivel member; a spring tending to hold the carrier in a horizontal position; and two shoes, one shoe being insulated from the other, each shoe being pivotally mounted on the carrierl so as to accommodate itself to the overhead wires.

3. The combination in a current collector for trolley cars, of a carrier; and two shoes on said carrier, one shoe being insulated from the other, said shoes being pivotally mounted so that they will accommodate themselves to the wires when the car carrying the arm 1s out of line with the wires.

4. The combination in a current collector for trolley cars, of a pole; a carrier thereon; two shoes mounted on the carrier, one shoe being insulated from the other; and means for allowing each shoe to have a certain amount of independent movement so that the shoes will accommodatethemselves to the wires.

5. The combination in a current collector for trolley cars, of a pole; a head mounted on the pole; a swivel member mounted on the head; a carrier pivoted to the swivel member; a spring on the swivel member bearing against the carrier so as to hold the carrier yieldingly in a horizontal position; two shoes mounted on the carrier, one shoe being insulated from the other; and a rope attached to the swivel member and passing through guides in the head so that the swivel member can be turned by hand when the rope is manipulated.

6. The combination in a current collector for trolley cars, of a head; aswivel member mounted on the head; a carrier pivoted to the swivel member, said carrier being made of non-conducting material and having three blocks also of non-conducting material, two of said blocks being at the ends of the carrier and one at or near the center thereof; bars between the center block and the two end blocks; shoes mounted on the ltwo bars.; means for limiting the rotary for trolley cars, of a pole; a head mounted on the pole; aswivel member mounted on the head; a carrier pivoted to the swivel member, said carrier extending laterally beyond the swivel member; a spring mounted on the swivel member and tending to support the carrier in its normal position; two shoes spaced apart and pivotally mounted on the carrier, said shoes being insulated one from the other; and means for limiting the rocking movement of the shoes.

8. .The combination of a head; a swivel member mounted thereon; a carri'e-r pivoted to the swivel member by a longitudinal pivot head; a spring carried by the pivot member and bearing against the under side of vthe carrier and tending to hold the carrier in its normal position; two bars mounted on the carrier, one bar being insulated from the other; a rod above each bar, one rod being insulated from the other; a shoe pivotally mounted on each bar, each shoe having a radial slot therein, said rods passing through the slots so as to limit the rocking movement of the shoes; and wires connected to the two bars.

9. The combination of a head; a swivel member mounted on the head; a carrier `piv- .oted to the swivel member; means tending to hold the carrier in a normal position; two shoes pivotally mounted on the carrier *and a third shoe centrally located and also mounted on the carrier; and terminals for each of the end shoes, the central shoe being connected toone of said terminals.

spaced apart and pivotally mounted on the carrier so that each shoe will have a movement independent of the other shoe, one shoe being insulated from the other shoe; a head; and a universal joint between the head and the carrier. y

12. The combination in a current collector for trolley cars, of a pole; a head mounted on the pole; a swivel member on the head; a carrier mounted on the swivel member; two shoes on the carrier; guides on the head; and a rope attached to the swivel member, one end of the rope extending through one guide, the other end of the rope passing through the other guide so that the swivel member can be turned on pulling either end of the rope.

13. The combination in a current collector, of a head; a swivel member thereon; two shoes carried by the swivel member; and means for manually turning the swivel member to adjust the shoes to overhead wires.

ISAAC D. SHIPPER. 

